Reversed-Phase Separation of a Standard PAH (Polycyclic Aromatic Hydrocarbons) Mixture on an Adamantyl Surface

摘要

Reversed phase high performance liquid chromatography (HPLC) is an important technique for the analysis of polycyclic aromatic hydrocarbons (PAG). In carrying out the chromatographic separations, octadecyl (C18) phases often are used because of their excellent selectivity towards PAH. Recently, Sander and Wise have studied and attempted to classify the various parameters which influence solute retention for this class of compounds. Surface coverage and solute shape have been found to be major factors which influence retention behavior. Recently we have reported an unique stationary phase synthesized by exhaustively modifying porous silica with bulky rigid molecules of adamantane. This surface has been shown to produce good peak shapes for basic solutes even under less than favorable chromatographic conditions. In the current work the selectivity of the adamantyl surface has been studied. In carrying out the evaluation, the polycyclic aromatic hydrocarbon mixture recommended by Sander and Wise has been used. (AW)